CN110306485A - A kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural and method - Google Patents
A kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural and method Download PDFInfo
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- CN110306485A CN110306485A CN201910404906.2A CN201910404906A CN110306485A CN 110306485 A CN110306485 A CN 110306485A CN 201910404906 A CN201910404906 A CN 201910404906A CN 110306485 A CN110306485 A CN 110306485A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000010276 construction Methods 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009415 formwork Methods 0.000 abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 9
- 238000011065 in-situ storage Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 210000000481 breast Anatomy 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/068—Landing stages for vessels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
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- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
A kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural and method, cast-in-place structural includes the bed die girder for being set to caisson side, end template is laid on the bed die girder, the both ends of the bed die girder are equipped with sunpender or hanger, the sunpender or the hanger are suspended in midair by cantilever beam, the cantilever beam is by the first rockbolt installation in adjacent caisson wall top or adjacent having poured in breastwork wall top, therefore in Precast Caisson, without formwork bolt pre-buried on caisson wall or formwork hole, there is no exposed formwork bolts or formwork bolt hole to block repairing quality hidden danger in caisson thin-wall side fluctuation of water table area, caisson durability reliability is high, end template is laid on mould girder, whole installation, it is influenced by tidewater small, it is convenient for disassembly and assembly, effect is high, it saves artificial, and bed die girder is suspended in midair by sunpender, bed die can quick and precisely be adjusted Plate absolute altitude, the structures such as cantilever beam and bed die girder can be used in turn, lossless, and overall cost performance is high, easy to spread.
Description
Technical field
The present invention relates to brick or concrete duct fields, cast-in-place more particularly to a kind of adjacent wall top suspention beam type caisson wharf breastwork
Structure and method.
Background technique
In Wharf Construction, because gravity type quay has both dock structure and soil-baffling structure dual function, it is used widely,
With long usage history.Using box structure or caisset as mainstream in Gravity harf structure, present invention is generally directed to
Caisset.
Breastwork is the superstructure of Gravity Caisson Wharf, and caisson wall top and breastwork lower part are normally at fluctuation of water table area
In range, end template laying, reinforcing bar binding, side template installation and concreting of cast-in-situ creast wall etc. generally require pursuing-tide work
Industry.Breastwork upstream face generally protrudes 30~50cm outward than caisson meets water metope, and breastwork bottom is lower than caisson top about 30cm.It is existing
When pouring breastwork, protrusion part needs to be laid with cast-in-place end template, and the traditional way of the end template is in caisson front wall outside top one
It calibrates the pre-buried row bench-type nut formwork bolt in high position or a reserved row installs formwork bolt preformed hole, pitch of bolts 1
~2m.Then triangle steel bracket is installed using the bolt, is laid with bed die distribution beam and bottom plate on triangle steel bracket.Breastwork pours
After the completion of building, bed die and triangle steel bracket are removed, removes bench-type nut or bolt, finally using mending mortar to these dismountings
The hole formed after bench-type nut or bolt carries out closure repairing, prevents pre-embedded bolt from corroding.
In general, the pre-buried position of formwork bolt is usually in fluctuation of water table area, in the area some tidal range great Gang, formwork spiral shell
The position of bolt can expose the surface in the time of low water, and pursuing-tide operation can carry out dry method and block repairing formwork bolt hole；It is small in some tidal ranges
Port area, formwork bolt location all not necessarily exposes the surface in the time of low water, and underwater wet process repairing formwork can only be carried out by diver
Bolt hole.The closure repairing quality of formwork bolt hole is by artificially big with such environmental effects, such as matter of closure mortar material itself
Amount, the quality of hole wall cleaning, plug-hole technique and operation quality, block mending course tidewater or wave splashes invasion etc., to repairing quality
It is unfavorable.Harbour fluctuation of water table area this by corrosion most serious position, when block repairing quality it is unreliable when, in bolt hole
Pre-embedded bolt will corrode, and form corrosion channel, further cause the corrosion of caisson wall steel bar near pre-embedded bolt, and gradually
Expand, and caisson wall itself belongs to thin-wall construction, the wall in the region is just gradually destroyed, and service life is not achieved in harbour.
Secondly, after caisson placing, since base bed flattening face actual elevation has differences, the originals such as caisson sedimentation has differences
Cause, there are height differences for the actual elevation of pre-buried formwork bolt or prepared screw-bolt hole on caisson wall, and breastwork bottom absolute altitude is usually
One definite value.Therefore when installation support triangle shape steel bracket, each triangle steel bracket will be adjusted according to actual elevation.
The operations such as installation, Pass line adjustment, the laying of bed die primary-secondary beam, the end template laying of triangle steel bracket require pursuing-tide when progress,
Can the pursuing-tide activity duration it is short, bed die be laid with low efficiency.In addition, after the completion of breast wall pouring, in the presence of bigger difficulty, behaviour when bed die is removed
It needs to enter below bed die as personnel and operate, operating space is limited, or even diver is needed to remove, and difficulty is big, danger
Danger is more, and effect is low.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of empty without pre-buried formwork bolt or formwork, caisson
Durability reliability is high, realizes integral installation and removes, and is influenced small adjacent wall top by tidewater and suspends beam type caisson wharf breastwork in midair
Cast-in-place structural and method.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural, the bed die master including being set to caisson side
Beam, is laid with end template on the bed die girder, and the both ends of the bed die girder are equipped with sunpender or hanger, the sunpender or described hangs
Frame is suspended in midair by cantilever beam, and the cantilever beam is by the first rockbolt installation in adjacent caisson wall top or adjacent having poured breastwork wall top
On.
Further, the workbench concordant with the end template is equipped on the bed die girder.
Further, the bottom of first anchor pole is embedded in advance in the caisson wall top, and the top of first anchor pole is by institute
It states and has poured breastwork package.
Further, the cantilever beam and the caisson wall top or described poured pass through bearing beam or gasket between breastwork wall top
It is padded.
Further, the sunpender is screw rod, and the end of the screw rod is fixed by nut, by adjusting the screw rod, with
Adjust the height of the end template.
Further, the end template includes the bottom steel plate being fixed to each other and top layer steel plate, and the bottom steel plate is layed in
The bed die girder, the movable setting of top layer steel plate piecemeal, and it is tightly attached to the metope of the caisson.
Further, the bottom of the hanger is equipped with the joist for placing the bed die girder, one end court of the joist
It is protruded into the caisson at the metope of the caisson.
Further, the side wall for having poured breastwork is tightly attached in the side of the hanger, is embedded in the side wall
Second anchor pole, second anchor pole are fixed on the hanger.
Further, the first breastwork side form is installed, the top of the first breastwork side form is equipped with first on the bed die girder
Pull rod, first pull rod are equipped with the second breastwork side form, the first breastwork side form far from one end of the first breastwork side form
It is connected between the second breastwork side form by the second pull rod, the second breastwork side form is far from the first breastwork side form
Side is connected to concrete block by brace.
A kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place method, comprising:
Pre-buried first anchor pole when Precast Caisson or when first construction section breastwork is cast-in-place；
Equip bed die girder and end template, the both ends connection sunpender or hanger of the bed die girder；
Cantilever beam is lifted, first anchor pole is fixed on the cantilever beam；
Lift the bed die girder and the end template；
Breastwork reinforcing bar is bound, breastwork template, casting concrete are installed；
Be extension hoisting wirerope after concrete strength reaches demoulding condition, hang out the cantilever beam, the bed die girder and
The end template.
Beneficial effects of the present invention:
The both ends of bed die girder are suspended to cantilever beam by sunpender or hanger, and cantilever beam is by the first rockbolt installation in adjacent
In caisson wall top or it is adjacent poured in breastwork wall top, therefore in Precast Caisson, without the pre-buried formwork spiral shell on caisson wall
Bolt or formwork hole, there is no exposed formwork bolts or formwork bolt hole to block repairing in caisson thin-wall side fluctuation of water table area
Hidden danger of quality, caisson durability reliability is high, is laid with end template on mould girder, whole installation is influenced small, dismounting side by tidewater
Just, effect is high, saves artificial, and bed die girder is by sunpender suspention, can quick and precisely adjust end template absolute altitude, cantilever beam and
The structures such as bed die girder can be used in turn, lossless, and overall cost performance is high, easy to spread.
Detailed description of the invention
Fig. 1 is that first construction section suspends cuing open for bed die in midair in the adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural of the present invention
View；
Fig. 2 is that first construction section is suspending bed die in midair just in the adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural of the present invention
View；
Fig. 3 is the side that the adjacent wall top of the present invention suspends that first construction section in beam type caisson wharf breastwork cast-in-place structural suspends bed die in midair in midair
View；
Fig. 4 is that construction section suspends cuing open for bed die in midair after the adjacent wall top of the present invention is suspended in midair in beam type caisson wharf breastwork cast-in-place structural
View；
Fig. 5 is that construction section is suspending bed die in midair just after the adjacent wall top of the present invention is suspended in midair in beam type caisson wharf breastwork cast-in-place structural
View；
Fig. 6 is the side that construction section suspends bed die in midair after the adjacent wall top of the present invention is suspended in midair in beam type caisson wharf breastwork cast-in-place structural
View；
Fig. 7 is that the adjacent wall top of the present invention suspends beam type bed die sectional schematic diagram in beam type caisson wharf breastwork cast-in-place structural in midair；
Fig. 8 is that the adjacent wall top of the present invention suspends beam type caisson wharf breastwork cast-in-place structural mesothorax wall form overall schematic in midair；
Fig. 9 is that the first anchor pole of caisson wall top is pre-buried in the adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural of the present invention
Schematic diagram；
In figure, 1-bed die girder, 2-end templates, 3-workbenches, 4-main sunpenders, 5-secondary sunpenders, 6-cantilever beams,
7-the first anchor pole, the 8-the first bearing beam, the 9-the second bearing beam, 10-caisson front walls, 11-caisson internal partition walls, 12-caisson compartments
Concrete cushion, 13-breastwork contour lines, 14-N# caissons, 15-N-1# caissons, 16-N+1# caissons, 17-hangers, 18-
Joist, 19-connection sunpenders, the 20-the second anchor pole, 21-gaskets, 22-it is quasi- pour breastwork, 23-N-1# have poured breastwork,
24-N+1# poured breastwork, 25-bottom steel plates, 26-top layer steel plates, the 27-the first breastwork side form, the 28-the first pull rod,
29-the second breastwork side form, the 30-the second pull rod, 31-braces, 32-concrete blocks, 33-Cast-in-situ Piles in Sand-filling, 34-struts.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
Such as Fig. 1 and Fig. 4, the present invention provides a kind of adjacent wall top suspention beam type caisson wharf breastwork cast-in-place structural, caisson knot
Configuration head cast-in-situ creast wall, which is generally on a caisson, sets one section of breastwork.Cast-in-situ creast wall construction frequently with even number section after first odd number section or
The jump section construction method of odd number section after first even number section.Cast-in-place bed die uses the beam type bed die of single beam monoblock type, and beam type bed die includes
It is set to the bed die girder 1 of caisson side, end template 2 is laid on bed die girder 1, because operation needs workbench, therefore bed die master
The workbench 3 concordant with end template 2 is equipped on beam 1.The both ends of bed die girder 1 be equipped with sunpender 4 or hanger 17, sunpender 4 or
Hanger 17 is suspended in midair by cantilever beam 6, and cantilever beam 6 is installed in adjacent caisson wall top by the first anchor pole 7 or adjacent has poured chest
In wall wall top.
Such as Fig. 2 and Fig. 5, specifically, the cantilever beam 6 of first construction section is installed on adjacent caisson 15, in 16 wall tops, rear construction section
Cantilever beam 6 be mounted on and adjacent poured breastwork 23, in 24 wall tops.Harbour end breastwork side does not have adjacent supporting structure
Object can not install cantilever beam 6, which uses conventional methods.
Such as Fig. 1 to Fig. 3, the cantilever beam 6 of first construction section uses Two bors d's oeuveres I-steel, and bed die girder 1 is by main sunpender 4 and time sunpender
5 are suspended on cantilever beam 6.Wherein main sunpender 4 is arranged close to caisson front wall 10, and secondary sunpender 5 is set to the end of cantilever beam 6, bottom
Portion and workbench 3 are fixed.In the present embodiment, the jib-length of cantilever beam about 1.5m, the clear distance between two I-steel is about
10~15cm, main sunpender 4 and time sunpender 5 are arranged therein.6 front fulcrum of cantilever beam is arranged in adjacent caisson 15,16 front wall wall tops
On, first anchor pole 7 at 6 rear of cantilever beam is arranged at caisson internal partition wall 11 and side wall node, is used at front fulcrum and rear anchor point
First bearing beam 8 is by the padded 10~20cm of cantilever beam 6, to disperse fulcrum stress.
Main sunpender 4 or/and secondary sunpender 5 are screw rod, and the end of screw rod 10~20cm of adjustment length, screw rod are solid by nut
It is fixed, by adjusting nut or screw rod, to adjust the absolute altitude of end template 2, to adapt to the height of caisson.Between nut and cantilever beam 6
It is padded by the second bearing beam 9.Caisson compartment concrete cushion 12 is set in caisson, it is quasi- to pour the top that breastwork is located at N# caisson 14
The bottom in portion, breastwork contour line 13 is concordant with the top of caisson compartment concrete cushion 12, and it is heavy to extend to adjacent N-1#
At case 15 and N+1# caisson 16.Cantilever beam 6 is installed in the wall top of N-1# caisson 15 and N+1# caisson 16.
If the bottom of Fig. 1 and Fig. 9, the first anchor pole 7 are embedded in caisson wall top in advance in Precast Caisson, the top of the first anchor pole 7
Portion is within the scope of the package of breastwork, therefore after breast wall pouring, and the top of the first anchor pole 7 has been poured breastwork package, therefore breastwork pours
Leakage ironware will not be generated after building.The size of main sunpender 4, secondary sunpender 5 and the first anchor pole 7 is determined by Force Calculation.
Such as fig. 4 to fig. 6, the cantilever beam 6 of rear construction section be arranged in it is adjacent poured breastwork 23, in 24 wall tops, due to cast-in-place
The bed die load center of breastwork is located at the region within breastwork leading flank, and the resultant force center of sunpender is preferably basic with bed die load center
Unanimously, excessive bias is avoided, bed die balance and stability is just conducive to.Therefore, hanger 17, hanger is arranged in the both ends of bed die girder 1
17 use steel frame type, and 17 top of hanger is rigidly connected with cantilever beam 6 by connection sunpender 19, and the bottom of hanger 17 is equipped with for putting
The joist 18 of bottom set mould girder, in the present embodiment, joist 18 are shoulder pole girder.Caisson is protruded into towards caisson in one end of joist 18
At metope, for shelving the bed die girder 1 below breastwork cantilever segment.The side of hanger 17 is close to pour the side wall of breastwork,
The second anchor pole 20 is embedded in side wall, the second anchor pole 20 is anchored in hanger 17, prevents 2 eccentric load of end template to hanger 17
It deflects, and then causes end template 2 uneven.First anchor pole 20 is rear along pre-buried on breastwork face, completes to breast wall pouring
After demoulding, the repairing of screw hole is carried out.Cantilever beam 6 and poured between breastwork wall top by gasket 21 it is padded.
It is quasi- to pour the top that breastwork 22 is located at N# caisson 14, N-1# caisson 15 adjacent at this time and N+1# such as Fig. 5 and Fig. 6
The top of caisson 16 has poured that N-1# has poured breastwork 23 and N+1# has poured breastwork 24, and cantilever beam 6 has been installed on N-1# at this time
It pours breastwork 23 and N+1# has been poured in the wall top of breastwork 24.
Such as Fig. 7 and Fig. 8,1 load of bed die girder include the self weight of breastwork cantilever part newly-laid concrete, the self weight of breastwork side form,
The self weight of end template 2, the self weight of bed die girder 1 and other construction loads.Therefore bed die girder 1 is substantially carried out when bed die girder 1 designs
Intensity and rigidity checking, calculate deflection value.
The length of bed die girder 1 is the sum of the distance of corresponding caisson length caisson side wall adjacent with two lateral extents.It is current normal
The length of Large Caisson has 19.5m or so or even longer, therefore 1 span of bed die girder is larger, is reinforced using " 321 " type
Type Bailey beam, double single layer arrangement, array pitch 45cm.Consider workbench width, is arranged using three row's single layer Bailey beams.Using
The colored window connection of 1.35m wide, forms the end template of overall width 1.35m, is able to satisfy job requirements.
Since long-span beams generate amount of deflection under load, the shadow of amount of deflection is eliminated by designing camber on end template
It rings.End template is arranged as double-layer plate, the bottom steel plate 25 including being fixed to each other and top layer steel plate 26,5~8mm of steel plate thickness,
Bottom steel plate 25 is directly layered on bed die girder 1 and fixes, and then spreads top layer steel plate 26.According to the deflection value of calculating, with correspondence
The gasket of thickness paves top layer steel plate 26, forms camber.
Caisson placing plan-position and absolute altitude have deviation, and each caisson upstream face not on the same face, meet by adjacent caisson
Waterwall face has front and back and grinds one's teeth.In order to make end template adapt to the faulting of slab ends of various sizes, caisson upstream face can be close to always, avoided
The top layer steel plate 26 in gap, spillage when causing casting concrete, end template 2 uses piecemeal manner, can fore-aft travel.Bed die
After 2 integral installation of plate is good, movable top layer steel plate 26 is leaned on toward caisson metope, is tightly attached to the metope of caisson, prevents excessive
Gap, blending bolt and bottom steel plate 25 are fixed, and the beating that prevents from surging changes.
Such as Fig. 8, after beam type bed die and cantilever beam 6 are installed, before pouring breastwork, is installed on bed die girder 1
The top of one breastwork side form 27, the first breastwork side form 27 is equipped with the first pull rod 28, and the first pull rod 28 is far from the first breastwork side form 27
One end be equipped with the second breastwork side form 29, between the first breastwork side form 27 and the second breastwork side form 29 by the second pull rod 30 connect
It connects, side of the second breastwork side form 29 far from the first breastwork side form 27 is connected to interim concrete block by brace 31
32,32 rear end of temporary concrete block is equipped with Cast-in-situ Piles in Sand-filling 33.The bottom of second breastwork side form 29 is additionally provided with strut 34.Breastwork is set
Side form is convenient for concreting.
The present invention also provides a kind of adjacent wall tops to suspend beam type caisson wharf breastwork cast-in-place method in midair, comprising:
Pre-buried first anchor pole 7 when Precast Caisson or when first construction section breastwork is cast-in-place.
It is equipped with beam type bed die, that is, is equipped with bed die girder 1, end template 2 and workbench 3, the both ends of bed die girder 1 connect
Connect sunpender 4 or hanger 17.
The first bearing beam 8 being laid at 6 front and rear fulcrum of cantilever beam.
Cantilever beam 6 is lifted, the first anchor pole 7 is tightened by nut is fixed on cantilever beam 6.
Beam type bed die is lifted, by adjusting the screw rod as sunpender 4,5, makes up to and sets so as to adjust 2 absolute altitude of end template
Evaluation.
Breastwork reinforcing bar, installation breastwork template, installation built-in fitting are bound, then casting concrete forms breastwork.
It is extension hoisting wirerope after concrete strength reaches demoulding condition, unscrews the nut of the first anchor pole 7 and sunpender 4,5,
Cantilever beam 6, bed die girder 1 and end template 2 are hung out, goes to next operating point week.It is lifted by crane using hoisting wirerope, reduces bottom
Form removable difficulty guarantees the job security of operator.
Compared with prior art, the invention has the following advantages that
(1) both ends of bed die girder 1 are suspended to cantilever beam 6 by sunpender 4 or hanger 17, and cantilever beam 6 passes through the first anchor pole 7
Be installed in adjacent caisson wall top or it is adjacent poured in breastwork wall top, therefore in Precast Caisson, without on caisson wall
Pre-buried formwork bolt or formwork hole.Exposed formwork bolt or formwork bolt hole is not present in caisson thin-wall side fluctuation of water table area
Hole blocks repairing quality hidden danger, and caisson durability reliability is high, long service life, with long-range social benefit and economic effect
Benefit.
(2) beam type bed die uses monoblock type, includes bed die girder 1, end template 2 and workbench 3, realizes integral installation
With dismounting, influenced by tidewater it is small, it is convenient and efficient.Beam type bed die is suspended in midair by screw rod, can quick and precisely adjust bed die absolute altitude.Entirely
The assembly and disassembly of bed die system, effect is high, saves artificial.
(3) bed die girder 1 uses large span Bailey beam, and intensity is high, can be used in turn, lossless；Progress is fast, saves people
Work improves quality, and overall cost performance is high, easy to spread.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, it will be appreciated by those skilled in the art that technical solution of the present invention can be modified or be waited
With replacement, without departing from the objective and range of the technical program, should all cover in scope of the presently claimed invention.
Claims (10)
1. a kind of adjacent wall top suspends beam type caisson wharf breastwork cast-in-place structural in midair characterized by comprising be set to caisson side
Bed die girder, end template is laid on the bed die girder, the both ends of the bed die girder are equipped with sunpender or hanger, the sunpender
Or the hanger is suspended in midair by cantilever beam, the cantilever beam is by the first rockbolt installation in adjacent caisson wall top or adjacent having poured
In breastwork wall top.
2. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
The workbench concordant with the end template is equipped on bed die girder.
3. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
The bottom of first anchor pole is embedded in advance in the caisson wall top, and the top of first anchor pole has poured breastwork package by described.
4. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
Cantilever beam and the caisson wall top or it is described poured between breastwork wall top by bearing beam or gasket it is padded.
5. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
Sunpender is screw rod, and the end of the screw rod is fixed by nut, by adjusting the screw rod, to adjust the height of the end template
Degree.
6. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
End template includes the bottom steel plate being fixed to each other and top layer steel plate, and the bottom steel plate is layed in the bed die girder, the top
The layer movable setting of steel plate piecemeal, and it is tightly attached to the metope of the caisson.
7. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
The bottom of hanger is equipped with the joist for placing the bed die girder, and it is described heavy that one end of the joist is protruded into towards the caisson
At the metope of case.
8. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
The side wall for having poured breastwork is tightly attached in the side of hanger, is embedded with the second anchor pole, second anchor in the side wall
Bar is fixed on the hanger.
9. adjacent wall top according to claim 1 suspends beam type caisson wharf breastwork cast-in-place structural in midair, it is characterised in that: described
First breastwork side form is installed, the top of the first breastwork side form is equipped with the first pull rod, and first pull rod is remote on bed die girder
One end from the first breastwork side form is equipped with the second breastwork side form, the first breastwork side form and the second breastwork side form it
Between connected by the second pull rod, the second breastwork side form is connected to far from the side of the first breastwork side form by brace
Concrete block.
10. a kind of adjacent wall top suspends beam type caisson wharf breastwork cast-in-place method in midair characterized by comprising
Pre-buried first anchor pole when Precast Caisson or when first construction section breastwork is cast-in-place；
Equip bed die girder and end template, the both ends connection sunpender or hanger of the bed die girder；
Cantilever beam is lifted, first anchor pole is fixed on the cantilever beam；
Lift the bed die girder and the end template；
Breastwork reinforcing bar is bound, breastwork template, casting concrete are installed；
It is extension hoisting wirerope after concrete strength reaches demoulding condition, hangs out the cantilever beam, the bed die girder and described
End template.
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Application publication date: 20191008 |